javascript promises
var promise = new Promise(function(resolve, reject) {
// do some long running async thing…
if (/* everything turned out fine */) {
resolve("Stuff worked!");
}
else {
reject(Error("It broke"));
}
});
//usage
promise.then(
function(result) { /* handle a successful result */ },
function(error) { /* handle an error */ }
);new promise function
const myPromise = new Promise((resolve, reject) => {
setTimeout(() => {
resolve('foo');
}, 300);
});
myPromise
.then(handleResolvedA, handleRejectedA)
.then(handleResolvedB, handleRejectedB)
.then(handleResolvedC, handleRejectedC);js promise
const prom = new Promise((resolve, reject) => {
resolve('Yay!');
});
const handleSuccess = (resolvedValue) => {
console.log(resolvedValue);
};
prom.then(handleSuccess); // Prints: 'Yay!'promise in js
myPromise
.then(handleResolvedA)
.then(handleResolvedB)
.then(handleResolvedC)
.catch(handleRejectedAny)
.finally(handleComplition)Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
